Untitled

#include <iostream>

using namespace std;

int main()
{
    int skolkoletkareshy;
    cin >> skolkoletkareshy;
    if (skolkoletkareshy > 40)
        cout << "tak ne bivaet";
    else
        if (skolkoletkareshy > 30)
            cout << "starii";
        else
            if (skolkoletkareshy > 20)
                cout << "bivalyi";
            else
                if (skolkoletkareshy > 10)
                    cout << "molodoy";
     else
         cout << "on prosto kakoito perec";
}